"'Gateway to Gridlock,' a Tribune series, has reported on problems at O'Hare that have delayed and frustrated thousands of passengers this year and threaten to extend poor service far into the future. Daley has refused to seek new runways at O'Hare to expand the airport's capacity. The Tribune series also described how his administration has sought to throw a wrench into construction of an airport near the Will County town of Peotone -- and outside of Daley's political control. . ."